Constance also learns a secret about the essence of evil, while Ben visits his wife Vivien in the mental hospital and gets smitten by another woman.

After revealing the man behind the rubber suit, "American Horror Story" will unfold another dark story next week. Constance learns that a child of human and spirit is the essence of evil which may bring the end of the world, and she is angry at her son Tate for what he's done.

Ben asks Moira about what happened to Vivien and visits his wife in the mental hospital, but gets smitten by a beautiful woman. Vivien's doctor tells him something that is not usually shared with a husband, and a famous murder victim, Elizabeth Short aka the Black Dahlia (Mena Suvari), pays his family a visit.

"Spooky Little Girl" will air Wednesday, November 30 at 10 P.M. on FX. Speaking to The Hollywood Reporter, Kate Mara reveals that her character Hayden will get other ghosts on her side to find a way to bring Vivien back into the house.

On what Hayden's master plan is, Mara says her character thinks "everyone is going to be happier if we can get rid of Vivien and take her babies." She goes on elaborating that Hayden wants Vivien's babies because "in her psychotic state she thinks Vivien's babies will be the next closest thing to her own. In her mind, Ben will be hers eventually even though everyone else sees that that's really not true. In her mind, that will bring her closer to him."

Hayden believes that the rubber man, who [SPOILER ALERT!] has been revealed as Tate in the latest episode, is the father of Vivien's babies. However, Mara teased that "it's not as simple as it seems", explaining, "You're going to discover a lot more than that in next week's episode where you find more information about that; it's pretty shocking. You find out more information about the pregnancy and the twins."